This is our biggest (along with the leopard print ones) and the most fun of our catnip toys. They are made from a pale greenish gray fake fur. They measure approximately 4" x 5 1/2". They are full of long lasting catnip pellets. These pellets are made from dried catnip that is then machine compressed into pellets. The wonderful catnip smell that your kitty loves so much will last about one year. 25% of sales is donated to Sweetpea, Friends of Rutland Animal Shelter and other various local animal shelters.